Refers to booting more than one operating system on one computer.

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Mac Mini 2010: DualBoot (BootCamp) OSX Mavericks + Windows 8.1

Before Mavericks I had a BootCamp dual boot configuration with Lion and Seven x64. That was fine but, because I replaced the hard drive with a SSD model, I took a chance to set as the newest ...
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4answers
23k views

Boot into Mac from Windows after failed Bootcamp

Don't hate on me too much for this one... I put Win8 on my Mac Mini using Bootcamp, and all was well. I switched back and forth a couple times between the two with no problems. The problem started ...
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2answers
2k views

Dual boot Kali with Mac

I want to dual my Macbook with Mavericks 10.9.4 and Kali 1.0.8. I have downloaded the Kali .iso and "burnt" it to a USB stick using the dd command from in Terminal. I have partitioned my hard drive ...
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1answer
51 views

Can I get bootcamp to use existing free space on physical disk?

When I installed my Macbook Pro, I had a 1Tb drive. When I formatted and partitioned the drive, I assigned 800Gb for OSX and left 200Gb free. I intended the free 200Gb to hold a Windows installation ...
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44 views

Dual-booting Linux, cannot view images, some text or buttons

I was trying to boot 4 linux OSes (using rEFInd): Kali, Ubuntu, Mint and Elementary on my 2015 MPB. Both Kali and Ubuntu would not boot at all and Linux Mint and Elementary would boot however some ...
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1answer
132 views

How to boot Linux from Mac using rEFInd

I have successfully installed rEFInd on my MacBook Pro 2015 so I can boot into Linux however I cannot seem to boot into it. Here are my issues (both with Ubuntu 64x Mac CD and Kali Linux 64x USB). ...
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2answers
1k views

Boot camp install of Windows 7 issue, no bootable devices

So I have a 2010 15" macbook pro (MBP6,1) and I replaced the optical drive with a hard disk. I wanted to install windows 7 on the hard disk with boot camp with a USB and ISO image. After searching I ...
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1answer
491 views

Uninstall rEFInd 0.8-3.7 on Yosemite

I recently tried installing rEFInd on Yosemite using the command ./install.sh --alldrivers however it would not recognise the ubuntu 14.04 x64 for Mac disk I made and so I would like to uninstall ...
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1answer
118 views

Reclaim hard drive space from deleted partition and reclaim Apple bootloader

I had my system dual-booted with Ubuntu 14.04. However, I found myself not using it enough to warrant the storage space. I deleted the ubuntu partition and the ubuntu swap partition. However, am now ...
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4answers
6k views

What is the minimum partition size for Mac OS 10.10 Yosemite?

I'm about to set up a Mac mini to dual boot Mavericks and Yosemite for software development purposes. What's the recommended minimum size of a Yosemite partition?
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3answers
87 views

I want to backup my Mac partition, including the OS, so that I can use the backup to restore my hard drive to its current state

I want to dual-boot Ubuntu (14.04) of my Mac running OS X 10.10.3. I want to make sure that I can use my backup to fix any issues I might have dual-booting. I have a bootable USB with Ubuntu on it, ...
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3answers
329 views

Mac OS X doesn't recognize hard disk

I replaced my CD drive with a Western Digital 750GB hard drive using the iFixit guide. My Mac for some reason throws error on any interaction with the hard drive, for example on disk utility when I ...
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2answers
670 views

Installing windows on Mac won't recognize USB [duplicate]

I am trying to install windows as a boot camp partition on my main hard drive ssd (after spending countless hours trying to get it installed on the optical bay hard drive). I assumed this would be ...
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0answers
103 views

Does Apple's EFI patch Thunderbolt devices to Windows 10?

So, I've been rattling with myself about this for a bit. I've followed 5SH-2a's guide of EFI Bootcamp to no avail. I decided to try it on my own, by mapping an NTFS Partition on my hard drive to a ...
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2answers
3k views

Install Mavericks on second partition in Yosemite-only system?

I have a 2012 MacBook Pro (so yes it's capable of Mavericks). I have only Yosemite currently installed on the drive. I have an app I need to run that does not seem to properly support Yosemite, so I ...
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1answer
59 views

Mavericks and Yosemite on macbook pro

My Macbook Pro (Retina, 13-inch, Late 2013) came preinstalled with Mavericks. Can I have Yosemite safely installed next to it on the same machine? If so, how?
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1answer
180 views

Partition SSD in Yosemite for Dual-Booting Ubuntu

I've just bought a new Macbook Air (running Yosemite) and I am trying to create a partition from my Macintosh HD SSD for dual-booting Ubuntu. However when I try to create a partition in Disk ...
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0answers
36 views

Sharing Dropbox folder between OSX and Ubuntu

I've got a MacBook Pro in dual boot MacOSX + Ubuntu. I'm sharing a home partition between the two, with HFS+ filesystem, and a Data partition, also in HFS+. In the Data partition I placed my Dropbox ...
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3answers
34k views

How to install Windows 7 Bootcamp using iso file (without USB/DVD)?

I have a MacBook Pro and I need to install Windows 7 besides Mac OS X so I can play games on it. The problem is that I don't have a USB stick or DVD to copy the Win7 iso image like Bootcamp requires. ...
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0answers
128 views

How to set up a dual-boot (OS X and Windows 7/8) environment in a Mac OS X Virtual Machine?

Anyone found a way to set up a dual-boot environment (preferably Mac OS X 10.9 and Windows 7) in a Mac OS X VM using a type-2 hypervisor like Parallels or VMware Fusion with Boot Camp Assistant? ...
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5answers
8k views

Disk Utility hangs prior to resizing partition

When trying to shrink the size of a partition, the period before the actual resizing happens (where Disk Utility says "Preparing to partition disk") hangs forever. I dug into Console to see what was ...
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0answers
174 views

Attemping dual boot with rEFInd - Mac OS X & Ubuntu 14.04 - Unexpected behavior

After posting here recently and having good success in getting to a solution, I thought it'd be worthwhile to ask about my latest headache. I’ve been trying to install Ubuntu 14.04LTS as a dual boot ...
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1answer
1k views

How to install Mountain Lion on USB disk and boot from USB

I have MacBook Pro from late 2011 era which I recently upgraded to Yosemite from Mountain Lion. But unfortunately I need some application that only worked on Mountain Lion and I cannot restore back to ...
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2answers
247 views

How can I repair partition map after attempting to dual boot screwed it up?

I tried installing Kali Linux in a separate partition on my MacBook, but after installation was completed, I was unable to boot back into Mac OS (displays a prohibited sign). I think everything went ...
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1answer
323 views

Using Windows on another HDD on a Mac

I have a 2011 MBP and I just replaced my optical drive with a hard drive. I wanted to know the easiest and free way to boot up windows 8.1 on one of the hard drives using only the iso and a flash ...
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2answers
242 views

OS X takes long to boot after starting rEFInd once

I have an SSD in my MacBook (Pro 9,2; encrypted), and until recently, the apple icon appeared almost immediately after pressing the power button. Soon after that I would be able to unlock the disk ...
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155 views

Bootcamp: Insert Boot disk error

Ok so I have been trying all day using all sorts of ISO's that I can find but I run through the process in Boot Camp Assistant ensuring that all three options are selected and I point to my ISO but ...
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0answers
30 views

Option key boot selector suddenly failing

I have an early 2008 Mac Pro (12 GB, several hard disks). On OS X I run Yosemtite, On Bootcamp, Windows 7. All works fine. Yesterday I installed a "new" Radeon 5770 to replace the aged (and very ...
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67 views

I'm on 10.10 and willing to add a partition of 10.9 for dual boot

My late-2008 MacBook Pro runs Yosemite. In order to use a driver for my projector that only works on Mavericks, I need to create a bootable partition which runs Mavericks. (Parallels won't let me ...
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0answers
209 views

How to install Mountain Lion or Mavericks in a separate partition while on Yosemite

For testing purposes, I need to install both Mountain lion and Mavericks along with with my Yosemite installation. I'd created two separate partitions and has created a USB installer. I expected to ...
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4answers
4k views

Gray screen immediately upon boot. Cannot enter into safe mode, and cannot show boot loader with the Alt key.

How the problem came to be: I wanted to dual boot Debian on my MacBook Pro 8,1. I got my USB ready, downloaded ISO, and installed rEFInd. I restarted to make sure the new boot manager worked. It ...
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1answer
720 views

Can't install Mountain Lion on a machine that has Mavericks installed, even on a separate disk/partition

I have upgraded my Mac mini 2012 to Mavericks, and everything is running quite well. However, it turns out that I need to also run Mountain Lion sometimes (a piece of hardware I need to use is not ...
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0answers
192 views

Install Windows 8.1 and OS X 10.9 on external SSD USB3.0 (iMac Late 2012)

Good morning, Currently I have my iMac running OS X 10.9 on an external USB3.0 SSD drive, and it has been running flawlessly. My question is: - Is it possible to dual-boot Windows 8.1 in the SAME ...
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1answer
125 views

Is it possible to have multiple filevault2-activated partitions on one disk?

What I would like to have: A disk with the following systems on it: OS X 10.8 (FV2-encrypted) OS X 10.9 (FV2-encrypted) Windows 7 When I try to start FV2-encryption on my secondary partition, OS X ...
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0answers
270 views

I can't install the drivers from AppleMultiTouchTrackPadInstaller64 on WIndows 8.1 (Bootcamp dualboot)

When I try to install "AppleMultiTouchTrackPadInstaller64.exe" (Apple Multitouch (09/04/2013 5.0.20) and Apple Multitouch Mouse (09/11/2012 4.0.3.0)) on Windows 8.1 I get an "install failed". As a ...
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1answer
154 views

How to boot linux from an external hard drive?

I am looking into booting the latest Ubuntu distro (14.04) from an external hard drive using my Macbook Air mid 2012 running Mavericks. I've looked around and couldn't find a link to any step-by-step ...
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544 views

Mac alternative boot loader for booting legacy OS from USB

I am trying to install Windows 7 on my MacBook as a dual boot setup. I have a MacBook 7,1 running Mavericks. I have replaced the DVD drive with a SSD (now have 2 internal drives) so cannot use a ...
0
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1answer
259 views

Triple Boot 2010 Macbook Pro with Dual Drive

I have a 2010 Macbook pro running Mavericks and Windows 7 on a 250gb SSD. I just removed the cd drive and installed my old 250 gb hard drive. So now I have two drives. I would like to make the hard ...
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198 views

How to fix a Windows partition after removing Bootcamp?

I have a 2009 MBP. For a long time I've had a Bootcamp partition on the hard drive, recently I bought a second SSD and installed it in the Optibay and installed Windows on it. As it was going well I ...
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0answers
667 views

How to bless a partition using a custom EFI-boot file with non-conforming directory structures and/or file names?

Is there a guide on how to bless a partition for booting, one that doesn't have the default /System/Library/CoreServices/boot.efi structure? For example, I installed GRUB on the default EFI System ...
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506 views

Problems restoring Windows to partition using Winclone

I installed Windows on my 2012 iMac a couple of months ago and it all worked out fine until my programs needed updates and I realized I had given my Windows partition to little space. I did some ...
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1answer
458 views

Reliable instruction on installing Ubuntu on Macbook Pro

There are some walk-through kind of instruction on installing Ubuntu on Macbook Pro (as dual boot OS along with Mac OS X), such as Lifehacker's post. But they are either too old that I worry if the ...
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1answer
179 views

If I mess up the EFI System Partition, will Mac OS X be unbootable?

I forgot to make a backup of my EFI System Partition (ESP) and have installed grub onto it. If I happen to accidentally mess up the partition, will OS X be bootable? If not, how would I restore the ...
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2answers
46k views

How to force Startup Manager menu to appear at every boot?

Is there any way to force the Startup Manager menu to appear on every boot? Rather than me having to remember to hold down Alt if I want a different OS.
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0answers
51 views

How do I get my dual boot to behave correctly?

Once upon a time my Mac had only OS X on it, but at various points in history it contained different versions of OS X and several different Linux distributions and their boot menus. I also had rEFIt ...
6
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3answers
9k views

How do you install and use a Linux partition on Mavericks?

As a just-for-fun type of experiment, I was wanting to install Linux on an external drive that I own and boot it up on my 2007 iMac desktop. I know there are a plethora of guides out there on how to ...
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160 views

MacBook pro boot's to wrong OS after waking up from Safe Sleep

I am dual booting Ubuntu and OS X Mavericks on my MacBook pro 9,2. I am using the rEFInd boot manager, since I was told that I should use it to dual boot OS X and Linux (I could have used rEFIt, but ...
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0answers
158 views

upgrade a triple boot with 10.6.8 to 10.9 - potential problems?

I was hoping to find a consensus of people who knew about the complications of upgrading from 10.6.8 to 10.9. I see on the App Store that 240 gave 10.9 1 star while 489 gave it 5 stars - so that is ...
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2answers
6k views

How can I boot my dual-booted Mac back to OS X?

I have a MacBook Pro and run Windows XP on it too much however I cannot remember how I can open the MacBook Pro with OS X on instead of Windows XP. How can I boot back to OS X?
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338 views

How to restore the MBR partition table of MacBook Pro?

I am using a MacBook Pro running OS X 10.9.2. While trying to triple boot my mac, I updated my MBR partition tables using rEFIt. Things didn't go as planned and now I want to start afresh. How can I ...